NU110
Exam 4: NU110 / NU 110 (Latest Update ) Integrated
Human Sciences | Questions & Answers | 100 % Correct | Grade A
- Galen
Reflex - ANS An INVOLUNTARY RAPID RESPONSE to damaging stimuli
What are the two divisions of the nervous system? - ANS CENTRAL Nervous
System (CNS) and PERIPHERAL Nervous System (PNS)
What is included in the Central Nervous System (CNS)? - ANS Brain and spinal
cord
What is included in the Peripheral Nervous System (PNS)? - ANS Cranial nerves
and spinal nerves
What are the divisions of the Peripheral Nervous System (PNS)? - ANS The
SOMATIC nervous system and AUTONOMIC nervous system
Effector - ANS Any tissue or organ that CARRIES OUT A COMMAND from the
nervous system
Autonomic Nervous System - ANS INVOLUNTARY Peripheral Nervous System
(PNS) - smooth/cardiac muscle, glands
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Somatic Nervous System - ANS VOLUNTARY Peripheral Nervous System (PNS) -
SKELETAL MUSCLE
Neurons - ANS Functional cells of the nervous system
Dendrites - ANS Neuron fibers that CONDUCT impulses TO the cell body
Axons - ANS Neuron fibers that CONDUCT impulses AWAY from the cell body
Receptors - ANS RECEIVE a STIMULUS that begins a neural pathway
Myelin - ANS WHITE FATTY substance that covers the axon in a SHEATH,
INSULATES and PROTECTS the axon, SPEEDS nerve impulses
What is the difference between white and gray matter - ANS White matter is
covered in myelin
Types of Neurons - ANS Sensory neurons, motor neurons, and interneurons
Sensory neurons - ANS Aka AFFERENT, conduct impulses TO brain and spinal cord
(CNS)
Motor neurons - ANS Aka EFFERENT, conduct impulses FROM brain and spinal
cord (CNS)
Interneurons - ANS Aka CENTRAL/ASSOCIATION, conduct impulses WITHIN the
brain and spinal cord, from place to place
Nerve - ANS Bundle of neuron fibers in the PNS
Tract - ANS Bundle of neuron fibers in the CNS
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